There are two things women are almost guaranteed to wake up with after a night out dancing in high heels: sore feet and at least one twisted ankle. But did you know you could also wake up with a more toned bottom and slimmer thighs? For while the effect of christian louboutin platform on women's bodies is widely thought to be negative - stilettos are known to cause everything from joint problems to bunions - fitness fans are increasingly claiming that they are actually the secret to a sculpted physique. Will Zara Phillips be popping in? Aldi makes new bid for the middle class purse as it launches range of EQUESTRIAN clothing Middle-class parents who've ruined their children's teeth - by giving them 'healthy' treats Celebrities here already seem to be getting in on the act - high-heel lover Victoria Beckham recently tweeted a picture of herself in 5in-high stiletto boots walking on a treadmill with a desk attached. Which is why I find myself - a 45-year-old who gave up christian louboutin loafers 20 years ago (bar the odd, painful wedding reception or girls’ night out) - standing in my local park wearing Lycra leggings, a vest… and red skyscrapers. Here to teach me the basics of working out in killer heels is British personal trainer Nikki Manashe, who has developed a high-heel workout that claims to tone legs, bottoms, hips, thighs and core abdominal muscles in ways they’ve never been toned before. Shape up: Squats like these in christian louboutin pumps are said to tone up the legs and bottom +5 Shape up: Squats like these in heels are said to tone up the legs and bottom London-based Nikki, 29, began devising the routine 18 months ago while trying out a range of fitness DVDs, including one based on pole dancing in which participants wore heels. 'This particular workout required you to do squats and lunges while wearing them,' remembers Nikki. 'I had never felt my leg muscles work so hard. 'It instinctively made sense to me. The best workout is done on a hill because doing lower body moves with the ankles lifted slightly higher make the calf, hip and leg muscles work much harder. 'Wearing christian louboutin evening at least 3in high means anything you do that works the lower body is not only more effective, it works the smaller muscles, too. 'You discover soreness in areas that you don't when you’re wearing trainers, especially the bottom muscles, the calves, inner thighs and outer hips.' According to Nikki, the results have been astounding. After 12 months of doing this workout three times a week, her clients have narrower hips, tighter bottoms - and no broken ankles. Yet can this way of exercising really be sensible?